Valve.



J. G. TALMAGE.

VALVE.

APPLICATION FILED JAN. 2, 1909.

l/VVE/VTOR & Gan Kim; Gm/rm ATTORNEY Patented Mar. 22, 1910.

WITNESSES.

v To all whom it may. concern:

citizen of the iUnited States,

- communication between two or more passtufiing box. It is ve f ters,

which the followin 1s a full, clear, and ex- -elevation of the plug itself; Fig.

1%. Each opening is metrically opposite its third opening.

E T FEM 1 JOHN e. TALMAGE, or CLEVELAND, 01-110.

, vALvE.

l Application filed January 2,

Specification of Letters Patent.

Patented Mar. 22%, rate. 1909. Serial No. 470,324.

TALMAGE, a l residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new i and useful Improvement in Valves, of

Be it known that 1, JOHN Gr.

act description, ref erence'being had to theaccompanying drawings.

The object of this invention is to provide in' a very simple form an efiicient valve adapted to instantly. establish unrestricted sageways.

My alve is particularly well adapted for a three-way valve. It is so devised that it is self-packing, without the necessity of a easily-operated and does not become lqcke' from expansion due to passing fluid.

The valve is hereinafter more fully described and' its essential characteristics set out in the claims.

The drawing shows my valve in an approved form.

' Figure 1 is a front elevation thereof; Fig. 2 is a side elevation; Fig. 3 is a central section parallel with Fig. 1; Fig. 4. is a central section parallel with Fig. 2; F ig. 5 is a front ,6 is a side 7 is a perelevation of such plug spective of the plug.

Referring to the parts by reference let- A represents the casingwhich has a central cylindrical chamber a and tubular wings or branches extending therefrom, of which one is shown at a and the others at a and 1. lVithin thevchamber a is the plug which has a hollow cylindrical head I) and a shank 7) extending outwardly through an opening in the front wall a of the casing. The cylindrical head I) of the plug has openings through its wall adapted to establish communication between the respective branches.

In" the form shown, the valve is a threeway valve. Through the cylindrical wall of the plug are shown three openings [2 b and of substantially the same diameter as the neck of the tubular wings. Two of the openings, as 72 b, are diametrically opposite each other, while the third opening, 72 is intermediate of such two, the wall of the plug being solid dia and Fig.

The plug is of suchsize that the openings branch at is the entrance through its cylindrical wall may be of the same diameter as the passageways to and from the valve, while the 'solid wall I) is large enough to bridge any of these passageways. The' result is that the valve plug may be turned to shut off any of the passageways and couple the other two without-restrlction of the cross section of the passageway.

As shown in Fig. 3, the branch (1 is shut ofi and the two branches a and a are "in free and open communication through the plug. If the plug be turned ninety degrees in the right hand direction, the passageway a will be shut ofi and the branch a be connected with the brancl1'a Similarly, if the plug be turned. ninety degrees in the left hand direction from that shown in Fig. 3, the branch a is cut OE and the branch a is connected with the branch a Any one of the branches'shown may be an entrance and the other two exits. If, for example, the branch, this will be closed when the plug is in the intermediate position as shown in Fig. 3, while turn} ing the plug a quarter of a revolution in" either direction will couple this entrance branch with either of the exit branches.

To enable the valve to be turned instantly, I provide on the shank b' a hand wheel C. This hand wheel is shown as having a hub 12 in which there is a non-circular recess which fits over a non-circular boss I)" on the shank 1). Through the center of the hand wheelis an opening through which extends a reduced portion 1) of the shank. This reduced portion is threaded beyond the hand wheel and carries a nut D locking the hand wheel, the nut being itself locked by a suitable cotter pln E. g a

On the hand wheel is a shoulder c which is adapted to abut either of a pair of lugs a and a) on the front plate a of the casing. This shoulder and the lugs the movement ofv the hand wheel, allowing it to be instantly swung from one extreme position tothe other and there stopped. By forming a suitable designation, as, for example, the word Close on that portion of the hand wheel rim which is adjacent to the In 0 and some designation, as the word pen, on the opposite side of the rim, the exact condition of communication within the valve is constantly shown. As appears in Fig. 1, the entrance branch 11 is closed.

Wdien the hand wheel is turned to the left,

form limits to the exit branch a tight joint and I an opening 6 through the rear end of the a will be designated Closed and. the branch a Open, and vice versa.

The shank of the portion 6 between the non-cylindrical portion 6 and the head Z). This cylindrical boss I) is the portion that o ccupies the central opening in the front plate a To make prevent leaking, I form plug, which allows the fluid pressure within the plug to press it against the front plate a making a tight joint. tion, I insert a suitable anti-friction washer of fiber or other material F between the front end of the head 6 and the inner face of the front wheel a The rear side of the chamber a, which is openable without restriction to allow the installation of the plug,

is, in use, closed by a cap-plug G, which is shown as screwing into this "portion of the chamber and having a flange g, abutting the end of the casing and limiting the inward move1nen t, the inner edge of the cap abutting the valve plug. This cap plug has a hexagon or other angular head g by which it may be screwed in by a suitable wrench. The cap-plug not only closes the casing but holds the valve against the washer with desired snugness.

The pipes communicating with the valve may be coupled with it in any suitable man- 'ner. As shown, the branches a and a are internally threaded to secure pipes screwing thereinto. The branch a is shown in Figs. 2 and 3, as having a suitable face'to receive a nipple K which is provided with a flange I u by which it may be held to the valve by a usual collar L overhanging the flange and screwingonto the outer side of thefileck a.

From the above description, it will be seen that nry struction; is cheaply made, and its various or disassembled, when desired. The fluid pressure keeps a tight joint where the shank passes out of the casing so that no st-ufling box is'required. '1

By having the plug large, as shown, the openings through it may be of the same size as the passageways to and from the plug so that there is no restriction The plug being cylindrical, it to the casing when it expands hand wheel furnishes means for instantly changing the presentation of the plug and shows at all times the condition of communication.

Having thus described my invention, what I claim 1s:

1. In a valve, the combination of a casin having a cylindrical chamber with round entrance and exit passa eways and an unrestricted rear, a cylin rical plug within the chamber having round entrance and exit openings through the cylindrical wall theredoes not bind by heat. The

plug has a cylindrical,

having parallel flat To relieve the friccommunicating therewith,

valve is extremely simple in conby the plug.

. plug and the inner face of of and adapted to be passed into such chainher from the rear,

cross sections of the ends one of wh1ch bears su'ch openings having cross sections substantially as great as the passageways, said plug against the front wall of the caslng, and a removable closure for the casing bearing against the rear end of the plug.

2. In a valve, the combination of a casing having a cylindrical chamber unrestricte at the rear and reduced at the front by a solid wall of the casing having an interior plane face, a cap-plug screwing into the rear end of said chamber and having a flange abutting the rearedge of the caslng, valve plug within the casing engaged by .the inner edge of the cap-plug, said, valve plug having a shank extending through the front wall'of the casing, and a flat packing washer surrounding the-shank between the end of the plug and the inner face of the casing front. e

3. The combination of a casing having an entrance and two exit passageways all communicating with a central cylindrical chamher, said chamber having an unreduced opening at the rear of the casing and having a ,central reduced opening through the front wall of the casing, a valve plug having. a head adapted to occupy such chamber and having a shank adapted to pass through the opening in the front wall, means adapted to engage the shank in the front of the casing for turning the plug, and a closure for the rear end of the chamber, there being openings through the wall of the plug and through the rear end thereof.

4. The combination of a casing having a chamber and entrance and exit passageways a plug occupying such chamber and'having a shank passing through an opening in the wall of the chamber, a packing washer surrounding such shank and lying between the head of the plug and the inner face of such'casing wall, entrance and exit openings into the plug, and an opening through the endrof the plu to enable internal the washer.

5. The combination'of a casing having 'a chamber and entrance and exit passageways communicating therewith, a plug occupying such chamber and having a shank passing through an opening in the wall of the chamher, a packing washer surrounding such shank and lying between the head of the such casing wall, entrance and exit openings into the plug,-

pressure to press it towar and an opening through the end of the plug to enable internal pressure to press it toward the washer, and a screw threaded closure for closing the rear'end of the eas ternally threaded tubular wings communieating therewith and on diametrically opposite sides of the chamber; an intermediate tubular wing communicating with the chamher; a cylindrical plug occupying such (llilllll)l and having two diametrically opposite round openings through its wall and an intermediate round opening, which openings are adapted to unrestrictedly communi- -ate with said tubular wings, said plug having a central shank extending forwardly through a central opening in the front wall of the easing, means on said shank in front of the casing for turning the plug, said vhainher opening unrestrictedly at the rear ,5 of the easing, and a closure for said rear opening adapted to abut the rear end of the plug and hold it pressed toward the front wall, and an anti-friction washer between the front end of the plug and the rear face 20 of said front wall.

In testimony whereof, I hereunto atlix my signature in the presence of two witnesses.

- JOHN Gr. TALMAGE.

itnesses ALBERT H. BA'rEs, BRENNAN B. WEST. 

